JP3106295U - Auto recovery universal joint - Google Patents

Abstract

[Problem] To provide an automatic recovery universal joint.
A connecting body (20) is pivotally provided between a fitting body (30) of a locking body (10) of a universal joint in a direction of an included angle of 90 degrees, and two connecting parts of two parts are provided on two wall surfaces. Both ends of the same recovery means are fixed, the recovery means is fitted on the pivot, and recovery means grooves are provided for placing the recovery means in the connecting body, and the locking ends of both ends of the recovery means are engaged with the connecting body. The universal joint receives the force by the elastically combined recovery means, in addition to being locked by the locking part and the locking body or the locking part of the fitting body to provide a tensioning effect between the connecting body and the locking body. When folded, the recovery means is deformed and has a biasing force for recovery, achieves the function of automatic recovery after the external force disappears, and generates a catch when rotating each part due to the biasing characteristic of elastic recovery during use. Do not let.
[Selection diagram] Fig. 1

Description

  The present invention relates to an automatic recovery universal joint, in particular, both ends of the same recovery means are fixed to the wall of each pivotal portion of the locking member, fitting body and connecting body of the universal joint, and the recovery means is wound around the pivot. Then, both ends of the recovery means are fixed to the corresponding two parts, the two corresponding parts have a biasing force for recovery, and the recovery means is built in between the two parts, and the universal joint receives an external force. The present invention relates to an auto-recovery universal joint, which recovers to its original position promptly by direct recovery means when the external rotation is lost and external force disappears.

  At present, the universal joint has a structure in which a coiled spring is accommodated in a receiving hole and male and female parts perform a recovery operation, or a structure of compression elastic means, in order to achieve the function of automatic recovery in the universal joint. Or a separate locking and positioning structure is provided in the joint. However, all of these are structurally complicated and difficult to recover the position, and there is a need for improvement.

  The main object of the present invention is to provide a kind of self-recovery universal joint, in which a recovery means is provided at a pivot portion between corresponding parts, and two parts corresponding to both ends of the recovery means. The two parts have a recovery effect by being pulled and held by the recovery means, and the two parts can be automatically recovered without receiving an external force, and the structure is simplified. It should be possible to assemble sufficiently quickly, to have a built-in property, and to have no blind spots at the time of transmission, thereby achieving high quality requirements.

The invention of claim 1 is a self-healing universal joint, wherein the universal joint comprises a locking part provided on a mutually corresponding pivotal end face between two parts through which the pivot is pivoted, and the locking is provided. The automatic recovery universal joint is characterized in that both ends of the recovery means are locked to the part and the two parts have a biasing force for automatic recovery.
According to a second aspect of the present invention, there is provided the automatic recovery universal joint according to the first aspect, wherein the universal joint includes a locking body which is locked to the socket, and the middle is a connecting body, and another end of the connecting body is pivotally connected to the fitting body. And a pivotal arm in a different axial direction to form a universal rotation configuration, and a bifurcated pivot arm is provided at an end of the locking body and the fitting body facing the connecting body, and the connecting body is disposed therebetween. And a shaft hole corresponding to each other is provided for the passage of the pivot, and a locking head is provided at another end of the locking body for fitting with the socket, and another end of the fitting body is provided. Is provided with a fitting head, a locking portion is provided on the fitting head, and is provided for locking and joining with a tool.
A large diameter recessed recovery means groove is provided at the opening end of the shaft hole of the connecting member, the recovery means is placed in the recovery means groove, the recovery means is wound around the pivot, and both ends of the recovery means are bent. A locking end is formed, a hole-shaped locking portion is provided at the bottom of the recovery means groove, and a hole-shaped locking portion is provided on the surface of the pivoting arm of the locking body or the fitting body. The automatic recovery universal joint is characterized in that it is mutually locked and positioned with the locking ends of both ends.
According to a third aspect of the present invention, in the automatic recovery universal joint according to the first or second aspect, the flat pressing portion is extended from the locking member of the recovery device, and the flat pressing portion is surely formed as the groove of the recovery device groove. An automatic recovery universal joint characterized by being pressed against the bottom and the corresponding surface of the pivot arm of the fitting or locking body.
According to a fourth aspect of the present invention, there is provided the automatic recovery universal joint according to the first aspect, wherein a shaft hole is provided in the bifurcated pivot arm of the spanner so as to pass through the pivot shaft, and the pivot shaft passes through the shaft hole of the connecting body. A recovery means groove is provided at the end of the shaft hole, and the recovery means is placed therein.The locking means is provided in the recovery means groove, and the locking part is provided on the corresponding pivot arm of the spanner. The automatic recovery universal joint is characterized in that the locking end of the recovery means is inserted.
According to a fifth aspect of the present invention, there is provided the automatic recovery universal joint according to the first aspect, wherein the locking portion has a groove shape.

  According to the present invention, the universal joint is provided with an automatic recovery function, and each component is provided with a considerable damping force in a normal state, thereby preventing unreasonable wobble.

  As shown in FIGS. 1 to 3, the universal joint of the present invention is pivotally connected to a socket 10, an intermediate connecting body 20, and another end of the connecting body 20, which are engaged with a socket, similarly to a known structure. , Which are pivoted and integrated with different axial pivots 40 to form a universal rotation configuration. Of these, the side of the locking body 10 and the fitting body 30 facing the connecting body 20 is provided with bifurcated pivot arms 11 and 31 and has a concave shape, and the connecting body 20 enters between them, and Corresponding shaft holes 110, 310, 21 are provided for passage of the pivot 40 and are thereby joined together. A locking head 12 is provided at another end of the locking body 10 and is provided for fitting with a socket. A fitting head 32 is provided at another end of the fitting body 30 and has a locking hole. Used for joining with tools. The features of the present invention are as follows.

  A large-diameter concave recovery means groove 22 is separately provided at the opening end of the shaft hole 21 of the connecting body 20, the recovery means 50 is placed in the recovery means groove 22, and the recovery means 50 is wound around the pivot 40. Installed in In the meantime, both ends of the recovery means 50 are bent along the axial direction to form a locking end 51, and the flat pressing portion 52 extends from the locking end 51, and the flat pressing portion 52 is securely connected to the recovery means groove 22. Is pressed against the opposing surfaces of the pivoting arms 11 and 31 of the locking body 10 or the fitting body 30. In addition, the locking portion 220 is provided at the bottom of the recovery means groove 22, and the locking portions 110 and 310 are provided on the surfaces of the pivoting arms 11 and 31 of the locking body 10 or the fitting body 30. The end 51 is engaged and positioned.

With this structure, the combination of the operation process and the structure has the following advantages.
1. Easy to assemble.
Assembling is performed by placing the recovery means 50 in the recovery means groove 22 through the pivot 40 through the recovery means 50, and locking the locking end 51 of the recovery means 50 in the locking portion 220 in the recovery means groove 22. After the combination is completed, each part is slightly turned to engage the other locking end 51 of the recovery means 50 with the locking portion 110 or the locking portion 110 or 310 of the pivot arm 11, 31 of the fitting body 30. Thereby, the universal joint has an automatic recovery function.
2. The installation of the recovery means 50 is rational and the recovery is reliable.
Cooperating with the locking ends 51 of both ends of the recovery means 50 through the locking of the corresponding structure, the enlarging or reducing the diameter of the entire recovery means 50 generates a biasing force for recovery. This is as shown in FIG.
3. It is a high quality universal joint that has a certain damper between each part and does not fall off.
As shown in FIG. 5, the space between the fitting body 30, the locking body 10 and the connecting body 20 is as shown in FIG. 5. By pressing the bottom of the means groove 22 to form a damper effect, the parts do not wobble, have a very high quality friction form, and have a high quality structure form.
4. Automatic recovery is assured. The recovery means 50 between each part surely provides a biasing force for recovery between each part.

  Further, as shown in FIG. 6, the recovery means 50 of the present invention can also have a form in which two parts are joined by butt, and a shaft hole 610 is provided on a bifurcated pivot arm 61 of the spanner 60. A recovery means groove 72 is provided for the passage of the pivot 40, the shaft 40 passes through the shaft hole 71 of the connecting head 70, and a recessed recovery means groove 72 is provided at an end of the shaft hole 71. A locking portion 720 is provided in the groove 72, and a locking portion 611 is also provided in the corresponding pivot arm 61 of the spanner 60, and the locking end 51 of the recovery means 50 is inserted.

  As shown in FIGS. 7 and 8, groove-shaped locking portions 220 and 311 are provided on the mutually pivoted wall surfaces of the corresponding components, respectively, so that the corresponding locking portions of the recovery means 50 are provided. It serves for locking and positioning of the end 51, which also achieves the same function as described above. In the two pivoted component forms, the locking portion shown in FIG. 6 can be in the position shown in FIGS. 7 and 8, both of which can achieve the above-described functions, and the recovery means 50 is generally used. Of a leaf spring.

  Taken together, the present invention reliably achieves the above-mentioned functions and can modify the overall shape of the universal joint as necessary. However, this part is not the focus of the present invention and will not be described. Even if the present invention is applied to a joint, the above functions can be surely achieved by using the present invention. Therefore, the present invention satisfies the requirements for utility model registration.

FIG. 2 is a three-dimensional external view of the present invention. FIG. 3 is an exploded view of the system of the present invention. It is sectional drawing of this invention. FIG. 4 is a sectional operation display diagram of the present invention. FIG. 3 is an enlarged cross-sectional view of the pivot portion of the present invention. FIG. 4 is a schematic diagram showing an embodiment of the present invention on a spanner. FIG. 5 is a schematic view showing another embodiment in which the present invention is applied to a connector. It is sectional drawing of FIG.

Explanation of reference numerals

DESCRIPTION OF SYMBOLS 10 Locking body 11 Pivot arm 110 Shaft hole 111 Locking part 12 Locking head 20 Connecting body 21 Shaft hole 22 Recovery means groove 220 Locking part 30 Fitting body 320 Locking part 310 Shaft hole 311 Locking part 32 Fitting Head 40 Axis 50 Recovery means 51 Locking end 52 Flat pusher 60 Spanner 61 Pivot arm 610 Shaft hole 611 Locking part 70 Connecting head 71 Shaft hole 72 Recovery means groove 720 Locking part 80 Recovery spring

Claims (5)

  In the automatic recovery universal joint, the universal joint includes a locking portion provided on a corresponding pivotal end face between two parts through which the pivot is passed, and the locking portion is provided with both ends of the recovery means. An automatic recovery universal joint which is locked and has a biasing force for automatic recovery between two parts. 2. The automatic recovery universal joint as claimed in claim 1, wherein the universal joint comprises a locking body which is locked to the socket, an intermediate part is a connecting body, and another end of the connecting body is pivotally connected to the fitting body, and has different axial directions. It is pivoted on a pivot to form a universal rotation configuration, and a bifurcated pivot arm is provided at the end of the locking body and the fitting body facing the connecting body, and the connecting body is inserted therebetween, and A corresponding shaft hole is provided and provided for passage of the pivot, a locking head is provided at another end of the locking body and provided for fitting with the socket, and a fitting head is provided at another end of the fitting body. , A locking portion is provided on the fitting head to lock and join with a tool,
A large diameter recessed recovery means groove is provided at the opening end of the shaft hole of the connecting member, the recovery means is placed in the recovery means groove, the recovery means is wound around the pivot, and both ends of the recovery means are bent. A locking end is formed, a hole-shaped locking portion is provided at the bottom of the recovery means groove, and a hole-shaped locking portion is provided on the surface of the pivoting arm of the locking body or the fitting body. A self-recovering universal joint characterized by being locked and positioned with both locking ends.   3. The automatic recovery universal joint according to claim 1, wherein the flat pressing portion is extended from the locking member of the recovery device, and the flat pressing portion is securely fitted to the groove bottom of the recovery device groove. An automatic recovery universal joint, characterized in that it is pressed against the corresponding surface of a pivotal arm of the body.   2. The automatic recovery universal joint according to claim 1, wherein a shaft hole is provided in the bifurcated pivot arm of the wrench for passage of the pivot shaft, and the pivot shaft is passed through the shaft hole of the connecting body, and another end of the shaft hole is provided. The recovery means is provided with a recessed recovery means groove provided therein, the recovery means is placed in the recovery means groove, the locking means is provided in the recovery means groove, and the locking means is also provided in the corresponding pivot arm of the spanner, so that the recovery means is locked. An automatic recovery universal joint, characterized in that the ends are inserted. The automatic recovery universal joint according to claim 1, wherein the locking portion has a groove shape.

Images